TY - JOUR AU - I. S. Lomov TI - On the rate of convergence of biorthogonal series connected with second-order differential operators JO - Differencialʹnye uravneniâ PY - 1996 SP - 71 EP - 82 VL - 32 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1996_32_1_a9/ LA - ru ID - DE_1996_32_1_a9 ER -